AMEREN CORP — Director's Dealing 2012

Mar 2, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMEREN CORP (AEE)
CIK: 0001002910
Period of Report: 2012-03-01

Reporting Person: BIRDSONG JERRE E (Vice President & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-01	Common Stock, $.01 Par Value	F	108	$32.07	Disposed	14557	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 Par Value	2366	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Performance Units	$		Common Stock (2341)	2341	Direct

Footnotes

F1: Shares sold to cover tax liability for the issuance of restricted stock.

F2: Each performance unit represents a contingent right to receive one share of Ameren common stock. The performance units vest after a two year holding period.